(20g80) | Macos Big Sur 11.5.1

: Available for all Macs compatible with Big Sur, including MacBook (2015+), MacBook Air (2013+), and iMac (2014+).

: This was a "surprise" security patch released just five days after version 11.5. macOS Big Sur 11.5.1 (20G80)

Released on July 26, 2021, is a maintenance update primarily focused on a critical security patch. Key Update Details : Available for all Macs compatible with Big

: This security fix was released simultaneously with iOS 14.7.1 and iPadOS 14.7.1 to address the same vulnerability. macOS 11.5.1 - Apple Wiki | Fandom including MacBook (2015+)

: Addresses a serious vulnerability in the IOMobileFrameBuffer .